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Defintions:
Note: FXS ground-start services are
polarity-sensitive and undesirable
behavior, such as failed calls, can occur if
proper polarity conventions are not
observed.
Cisco IOS®
Requires a "Plus" or "IPVOICE" feature
Software
set.
Feature Set
Configuration
For configuration of Voice features in Cisco IOS Software, refer to
Series.
Note: In Cisco IOS Software, issue the voice-port <slot>/<VIC slot>/<unit> global configuration
command to configure the voice port parameters.
The commands to configure Voice over IP (VoIP) on Cisco routers are very similar on all of the
router platforms shown here.
For configuration of voice features in Catalyst OS (CatOS) on a Catalyst 4000, refer to
Voice
Interfaces.
Platform Support
Note: The table that follows has been split due to spatial concerns.
Cisco IOS
Software
1750
1
Support
Carrier
Not
Module
Required
All
VIC-2FXS
versions
Not
VIC2-
2FXS
Supported
Pinouts for Rolled RJ11 Cable =>
TIP to RING, RING to TIP
Pinouts for Straight RJ11 Cable=>
TIP to TIP, RING to RING
2
1751
,
2
VG200
2
1760
Not
NM-1V
Required
NM-2V
All
12.1(3)T,
Versions
12.1(3)T
12.2(15)
Not
ZL, 12.3
Supported
(4)T,
12.3(4)
Voice over IP for the Cisco 3600
2600,
3620
NM-1V
NM-1V
NM-2V
NM-2V
All
All
Versions
Versions
Not
Not
Supported
Supported
Configuring
2600XM
NM-HD-
1V, NM-
NM-
HD-2V,
HDV2
NM-HD-
2VE
Not
Not
Supported
Supported
12.2(15)
ZJ, 12.3
12.3(7)T
(4)T
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